[lubuntu-devel] [Bug 2140539] [NEW] calamares installation fails when running mount operation

[Leó Kolbeinsson]

Public bug reported:

Installing Lubuntu Resolute daily ISO dated 04-02-2026

Test machine: ASUS Pro H610M-C i7-12700 Motherboard,32GB,Intel UHDGraphics 770,Intel 219-V GB Ethernet,1TB Intel SSD
Testcase:BIOS,no encryption,full disk with swap file,Internet - run in VirtualBox

The installation fails and reverts to desktop when it reaches the stage
"running mount operation"

Also noted that on the desktop after failure was an icon that stated "
 "Install Lubuntu 25.10"

ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: calamares 3.3.14-0ubuntu15
ProcVersionSignature: Ubuntu 6.18.0-9.9-generic 6.18.5
Uname: Linux 6.18.0-9-generic x86_64
.etc.calamares.modules.finished.conf:
 ---
 restartNowMode: user-checked
 restartNowCommand: "systemctl -i reboot"
.etc.calamares.modules.fstab.conf:
 crypttabOptions: luks,keyscript=/bin/cat
 efiMountOptions: umask=0077
.etc.calamares.modules.shellprocess_logs.conf:
 ---
 dontChroot: true
 timeout: 30
 script:
     - calamares-logs-helper ${ROOT}
ApportVersion: 2.33.1-0ubuntu3
Architecture: amd64
CasperMD5CheckResult: pass
CasperVersion: 25.10.2build1
CloudArchitecture: x86_64
CloudID: nocloud
CloudName: unknown
CloudPlatform: nocloud
CloudSubPlatform: seed-dir (/var/lib/cloud/seed/nocloud)
CurrentDesktop: LXQt
Date: Thu Feb  5 10:23:07 2026
LiveMediaBuild: Lubuntu 26.04 LTS "Resolute Raccoon" - Daily amd64 (20260204)
RelatedPackageVersions:
 calamares-settings-ubuntu-common 1:26.04.2
 calamares-settings-lubuntu       1:26.04.2
 xfsprogs                         6.18.0-3
 btrfs-progs                      6.17.1-1
SourcePackage: calamares
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: calamares (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug resolute

** Description changed:

  Installing Lubuntu Resolute daily ISO dated 04-02-2026
  
- Test machine:
+ Test machine: ASUS Pro H610M-C i7-12700 Motherboard,32GB,Intel UHDGraphics 770,Intel 219-V GB Ethernet,1TB Intel SSD
+ Testcase:BIOS,no encryption,full disk with swap file,Internet - run in VirtualBox
  
- 
- The installation fails and reverts to desktop when it reaches the stage "running mount operation"
+ The installation fails and reverts to desktop when it reaches the stage
+ "running mount operation"
  
  Also noted that on the desktop after failure was an icon that stated "
-  "Install Lubuntu 25.10"
+  "Install Lubuntu 25.10"
  
  ProblemType: Bug
  DistroRelease: Ubuntu 26.04
  Package: calamares 3.3.14-0ubuntu15
  ProcVersionSignature: Ubuntu 6.18.0-9.9-generic 6.18.5
  Uname: Linux 6.18.0-9-generic x86_64
  .etc.calamares.modules.finished.conf:
-  ---
-  restartNowMode: user-checked
-  restartNowCommand: "systemctl -i reboot"
+  ---
+  restartNowMode: user-checked
+  restartNowCommand: "systemctl -i reboot"
  .etc.calamares.modules.fstab.conf:
-  crypttabOptions: luks,keyscript=/bin/cat
-  efiMountOptions: umask=0077
+  crypttabOptions: luks,keyscript=/bin/cat
+  efiMountOptions: umask=0077
  .etc.calamares.modules.shellprocess_logs.conf:
-  ---
-  dontChroot: true
-  timeout: 30
-  script:
-      - calamares-logs-helper ${ROOT}
+  ---
+  dontChroot: true
+  timeout: 30
+  script:
+      - calamares-logs-helper ${ROOT}
  ApportVersion: 2.33.1-0ubuntu3
  Architecture: amd64
  CasperMD5CheckResult: pass
  CasperVersion: 25.10.2build1
  CloudArchitecture: x86_64
  CloudID: nocloud
  CloudName: unknown
  CloudPlatform: nocloud
  CloudSubPlatform: seed-dir (/var/lib/cloud/seed/nocloud)
  CurrentDesktop: LXQt
  Date: Thu Feb  5 10:23:07 2026
  LiveMediaBuild: Lubuntu 26.04 LTS "Resolute Raccoon" - Daily amd64 (20260204)
  RelatedPackageVersions:
-  calamares-settings-ubuntu-common 1:26.04.2
-  calamares-settings-lubuntu       1:26.04.2
-  xfsprogs                         6.18.0-3
-  btrfs-progs                      6.17.1-1
+  calamares-settings-ubuntu-common 1:26.04.2
+  calamares-settings-lubuntu       1:26.04.2
+  xfsprogs                         6.18.0-3
+  btrfs-progs                      6.17.1-1
  SourcePackage: calamares
  UpgradeStatus: No upgrade log present (probably fresh install)

-- 
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https://bugs.launchpad.net/bugs/2140539

Title:
  calamares installation fails when running mount operation

Status in calamares package in Ubuntu:
  New

Bug description:
  Installing Lubuntu Resolute daily ISO dated 04-02-2026

  Test machine: ASUS Pro H610M-C i7-12700 Motherboard,32GB,Intel UHDGraphics 770,Intel 219-V GB Ethernet,1TB Intel SSD
  Testcase:BIOS,no encryption,full disk with swap file,Internet - run in VirtualBox

  The installation fails and reverts to desktop when it reaches the
  stage "running mount operation"

  Also noted that on the desktop after failure was an icon that stated "
   "Install Lubuntu 25.10"

  ProblemType: Bug
  DistroRelease: Ubuntu 26.04
  Package: calamares 3.3.14-0ubuntu15
  ProcVersionSignature: Ubuntu 6.18.0-9.9-generic 6.18.5
  Uname: Linux 6.18.0-9-generic x86_64
  .etc.calamares.modules.finished.conf:
   ---
   restartNowMode: user-checked
   restartNowCommand: "systemctl -i reboot"
  .etc.calamares.modules.fstab.conf:
   crypttabOptions: luks,keyscript=/bin/cat
   efiMountOptions: umask=0077
  .etc.calamares.modules.shellprocess_logs.conf:
   ---
   dontChroot: true
   timeout: 30
   script:
       - calamares-logs-helper ${ROOT}
  ApportVersion: 2.33.1-0ubuntu3
  Architecture: amd64
  CasperMD5CheckResult: pass
  CasperVersion: 25.10.2build1
  CloudArchitecture: x86_64
  CloudID: nocloud
  CloudName: unknown
  CloudPlatform: nocloud
  CloudSubPlatform: seed-dir (/var/lib/cloud/seed/nocloud)
  CurrentDesktop: LXQt
  Date: Thu Feb  5 10:23:07 2026
  LiveMediaBuild: Lubuntu 26.04 LTS "Resolute Raccoon" - Daily amd64 (20260204)
  RelatedPackageVersions:
   calamares-settings-ubuntu-common 1:26.04.2
   calamares-settings-lubuntu       1:26.04.2
   xfsprogs                         6.18.0-3
   btrfs-progs                      6.17.1-1
  SourcePackage: calamares
  UpgradeStatus: No upgrade log present (probably fresh install)

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